Wenlu Guan, Fengfu Tan, Zaihong Hou, Laian Qin, Feng He, Silong Zhang, Yi Wu. Design of scattering sampling attenuation unit for detector array target[J]. Infrared and Laser Engineering, 2021, 50(12): 20210150
- Infrared and Laser Engineering
- Vol. 50, Issue 12, 20210150 (2021)
Fig. 1. Schematic diagram of BTDF geometry
Fig. 2. Distribution characteristics of transmission and scattering angle. (a) Ground glass; (b) Engineering diffuser
Fig. 3. Structure of scattering sampling attenuation unit
Fig. 4. Comparison of the simulation results of the scattering angle characteristics of transmitted materials. (a) Ground glass; (b) Engineering diffuser
Fig. 5. Three-dimensional spatial distribution of the emitted light from the combined sampling attenuation structure
Fig. 6. Experimental optical path diagram of transmission and scattering characteristics of sampling materials
Fig. 7. Grid processing of experimental spots. (a) Acquired spot image; (b) Gridded spot image
Fig. 8. Comparison of simulation and experiment of transmitted scattered light distribution. (a) Single piece of ground glass; (b) Combin-ation of ground glass and engineering diffuser
Fig. 9. Response linearity of combined scattering sampling attenuation structure
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Table 1. Laser damage test of sampling attenuation materials
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